Calculate a confidence interval for assuming that each sample is from a normal population a x bar 24, 3, n 10, 90 percent confidence b x bar 125, 8, n 25, 99 percent confidence c x bar 12 5, 1 2, n 50, 95 percent confidence ...

Calculate a confidence interval for assuming that each sample is from a normal population. a. x-bar =

Question:

Calculate a confidence interval for assuming that each sample is from a normal population.
a. x-bar = 24, σ = 3, n = 10, 90 percent confidence
b. x-bar = 125, σ = 8, n = 25, 99 percent confidence
c. x-bar = 12.5, σ = 1.2, n = 50, 95 percent confidence